let x = 6;
function show () {
  console.log('show()函数');
}
class Person {
  constructor(name, sex, age) {
    this.name = name;
    this.sex = sex;
    this.age = age;
  }
}
//暴露
// export { Person, show, x };
export { Person, show };
export default x;

export class Student {

}

